Keyboard Test Online
Use this keyboard test online to check every key, test keyboard ghosting and NKRO combos, spot key chatter, and estimate polling rate without installing software.
Probador de teclado
Presiona teclas para resaltarlas en tiempo real. Soporta varios layouts, leyendas por idioma, historial de combos, sonido y reinicio.
- Usa el selector de layout para igualar tu teclado físico (ANSI/ISO/TKL).
- Cambia el idioma de leyendas para letras regionales.
- Reiniciar limpia resaltados y el historial de combos.
- El banner de finalizaci?n aparece cuando todas las teclas del layout est?n probadas.
Teclas probadas para el layout actual
What Each Keyboard Test Does
Each mode helps you catch a different kind of keyboard problem.
Key Test
Press each key and watch it light up on the layout. If one key never responds, you are likely dealing with a dead switch, debris under the cap, or a connection issue.
Keyboard Ghosting Test
Hold several keys at once to see whether they all register together. This is the quickest way to spot rollover limits and the combos your keyboard struggles with.
Key Chatter Test
Tap the same key a few times and watch for extra inputs. If one press turns into two, the switch may be worn or the debounce setting may be too aggressive.
Keyboard Polling Rate Test
This gives you an estimate of how often the keyboard reports to your computer. It will not fix latency by itself, but it can show whether your board is running slower than expected.
¿Qué es una prueba de teclado?
Esta prueba de teclado incluye una prueba de tasa de sondeo del teclado para que puedas ver los Hz de tu dispositivo mientras escribes. Una prueba de teclado detecta y muestra cada pulsación en tiempo real, verificando que todas las teclas, incluidas las teclas de función, modificadores como Ctrl y Alt y teclas especiales, funcionen correctamente. Es útil al comprar teclados usados, solucionar problemas de entrada o probar teclados mecánicos nuevos. Este probador en el navegador no requiere instalación y admite diseños ANSI, ISO y TKL.
¿Qué es una prueba de tasa de sondeo del teclado?
Una prueba de tasa de sondeo del teclado mide con qué frecuencia el teclado informa los estados de las teclas al ordenador, en hercios (Hz). Una tasa más alta reduce el retraso de entrada y mejora la respuesta. Haz la prueba en tu navegador para detectar ajustes bajos o cuellos de botella USB sin software extra.
C?mo funciona esta prueba de teclado en l?nea
Nuestro tester de teclado usa eventos de teclado en JavaScript para capturar cada pulsaci?n y liberaci?n en tiempo real. Cuando presionas una tecla, el navegador dispara eventos keydown y keyup que detectamos y mostramos en el teclado virtual. Registramos c?digos de tecla, estados de modificadores (Shift, Ctrl, Alt) y combinaciones. Todo el procesamiento ocurre localmente en tu navegador, sin enviar datos, por lo que tu escritura permanece privada.
Precisi?n y limitaciones
Esta prueba en el navegador detecta la mayor?a de las teclas en teclados est?ndar. Limitaciones: algunas teclas del sistema (Print Screen, ciertas teclas de funci?n) pueden ser interceptadas por el sistema operativo antes de llegar al navegador. Los l?mites de anti-ghosting var?an por hardware. Las teclas multimedia y especiales pueden no estar totalmente soportadas. Para pruebas de atajos a nivel de sistema, considera herramientas nativas.
C?mo interpretar tus resultados
Respuesta de teclas
Las teclas deben resaltarse al instante al presionarlas y volver al estado normal al soltarlas. Respuestas tard?as o ausencia de respuesta pueden indicar problemas de switches o compatibilidad del navegador.
Problemas de ghosting
Si al presionar varias teclas se registran entradas inesperadas o se pierden pulsaciones, tu teclado puede tener l?mites de anti-ghosting. Los teclados gaming suelen manejarlo mejor.
Teclas modificadoras
Shift, Ctrl, Alt y Cmd/Win deben registrarse y combinarse correctamente con otras teclas. Problemas aqu? pueden indicar fallas de drivers o hardware.
When to Test Your Keyboard
A quick check is useful in more situations than most people expect.
Gaming
Test the combos you actually use in game, especially movement keys with Shift, Ctrl, or Space. If one key drops out, you have found the problem before it costs you a match.
Testing a Used Keyboard
Before you buy a second-hand board, run through every key once. It takes a minute and can save you from bringing home a keyboard with dead keys or double typing.
After a Spill or Cleaning
After a spill or deep clean, keys can feel fine and still misfire. A full pass through the tester is an easy way to catch sticky, slow, or inconsistent switches.
Diagnosing Typing Issues
If letters are missing, repeating, or showing up at the wrong time, use the key, chatter, and combo tests together. You will usually narrow the issue down pretty fast.
Keyboard Troubleshooting Guide
These are the problems people usually find first, and what to try next.
Key Not Registering (Dead Key)
Usually this means dirt under the keycap, a worn switch, or a loose connection. Pull the cap, clean the area with compressed air, and test again. If the board is hot swap, replacing the switch is the next thing to try.
Key Chatter / Double Input
Double inputs usually come from aging switch contacts or debounce settings that are too short. If your keyboard software allows it, increase debounce time first. If that does not help, clean or replace the switch.
Keyboard Ghosting
Ghosting usually comes from the keyboard matrix itself, which is common on cheaper membrane boards. Check which combos fail most often. If those combos matter to you, you may need a keyboard with better rollover support.
Keyboard Testing Glossary
A few terms show up a lot in keyboard discussions. Here is what they mean.
- NKRO (N-Key Rollover)
- NKRO means the keyboard can register every key you are holding at the same time, not just the first few. It matters most for games, shortcuts, and very fast typing.
- Key Ghosting
- Ghosting happens when some keys in a combo do not register, or the keyboard reports a key you never pressed. It usually comes from the way the keyboard matrix is wired.
- Key Chatter
- Key chatter is when one press turns into two or more inputs. Older mechanical switches and bad debounce settings are common causes.
- Debounce Time
- Debounce time is a short delay in firmware that filters out accidental repeat signals after a press. Too little can cause chatter. Too much can make fast taps feel inconsistent.
- Polling Rate
- Polling rate is how often the keyboard reports its state to the computer each second. Office keyboards often sit around 125 Hz, while gaming boards commonly run at 1000 Hz or more.
FAQ de prueba de teclado
Preguntas comunes sobre teclas y layouts.
Keyboard Care Tips
A little maintenance goes a long way, especially if you use the board every day.
Clean Keycaps Regularly
Dust and crumbs build up faster than people think. Pull the caps now and then, brush the plate, and clear loose debris before it starts affecting switches.
Avoid Liquids Near Your Keyboard
Spills are still the fastest way to ruin a good board. If it happens, unplug it right away, turn it upside down, and give it enough time to dry before you test anything.
Use the Right Switch for Your Need
If you hate your keyboard, the switch type may be part of the reason. Linear switches feel smooth, tactile switches add a bump, and clicky switches are loud on purpose. Pick what matches how you actually use the board.
Update Keyboard Firmware
Some boards get real fixes through firmware updates, especially for debounce or polling problems. If your keyboard has companion software, check for updates before assuming the hardware is bad.
Related Hardware Tests
More free tools to check your setup.
Key Rollover Test
Test keyboard anti-ghosting and N-key rollover (NKRO) by pressing multiple keys simultaneously and seeing which register.
Typing Speed Test
Measure your typing speed in words per minute (WPM) and accuracy. Choose 30s or 60s mode with color-coded word feedback.
Mouse Test
Check left click, right click, middle click, scroll wheel up/down, and double-click issues online.
Input Lag Test
Measure browser-level click-to-frame latency using requestAnimationFrame. See average, best, and worst lag across 10 clicks.
Mouse Polling Rate Test
Check mouse polling rate and mouse Hz with median, peak, distribution, and stability metrics.
Sobre esta prueba
Metodolog?a: Nuestra metodolog?a usa APIs web est?ndar (KeyboardEvent) compatibles con navegadores modernos. Las pruebas est?n dise?adas para precisi?n y repetibilidad.
Acerca de: HardwareTest ofrece diagn?sticos gratuitos y centrados en la privacidad. Todas las pruebas se ejecutan completamente en tu navegador sin recopilaci?n de datos.
Descargo de responsabilidad: Esta herramienta ofrece detecci?n de teclas a nivel de navegador. Algunas teclas del sistema pueden ser interceptadas por el sistema operativo. Para pruebas completas, puede ser necesario usar varios navegadores.